SUPPORT AS-PIPE 1N3367 - Caterpillar

Models PDF1-1768, ; FWL1-950, and ; KZN1-Up, ; KNP1-213 and ; ERP1-213
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Note: Wipe the covers and surfaces around openings before you check the oil and before you add oil.
Illustration 1 g00493398
Front Differential and Final Drive Drain Plug
Illustration 2 g00393958
Rear Differential and Final Drive Drain Plug
Remove the drain plugs for the front differential and for the rear differential. Allow the oil to drain into a suitable container.
Illustration 3 g00475408
Dipstick/Fill Plug for the Front Differential and Final Drive
Illustration 4 g00393646
Dipstick/Fill Plug for the Rear Differential and Final Drive
Remove the dipstick/fill plug for the front differential and the dipstick/fill plug for the rear differential.
Clean the drain plugs and install the drain plugs.
Add 0.47 L (0.50 qt) of 1U-9891 Hydraulic Oil Additive.
Fill the axles with oil. Reference: Refer to Operation and Maintenance Manual, "Lubricant Viscosities and Refill Capacities".
Install the dipstick/fill plugs for each differential. Operate the machine for a few minutes and allow the oil to flow completely through the axles.
Remove the dipstick/fill plugs. Maintain the oil between the "ADD" mark and the "FULL" mark on the dipstick/fill plug of each differential.
Clean the dipstick/fill plugs and install the dipstick/fill plugs for each differential. Models PDF1769-Up and ; FWL951-Up, ; KNP214-Up and ; ERP214-Up
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Note: Wipe the covers and surfaces around openings before you check the oil and before you add oil.
Illustration 5 g02949640
(1) Front Differential Fill Plug
(2) Front Differential Drain Plug
(3) Front Differential Level Check Plug
Illustration 6 g02949656
(1) Rear Differential Fill Plug
(2) Rear Differential Drain Plug
(3) Rear Differential Level Check Plug
Illustration 7 g02949658
Planetary Final Drive Drain Plug
Remove the drain plugs for the front differential and for the rear differential. Allow the oil to drain into a suitable container.
Clean the drain plugs and install the drain plugs.
Remove the fill plugs for the front differential and for the rear differential.
Add 0.47 L (0.50 qt) of 1U-9891 Hydraulic Oil Additive.
Fill the axles with oil. Reference: Refer to Operation and Maintenance Manual, "Lubricant Viscosities and Refill Capacities".
Install the fill plugs for each differential.
Rotate the wheel so that the drain/fill plug is at the bottom.
Remove the plug and allow the oil to drain into a suitable container.
Rotate the wheel so that the drain/fill plug is at the side, horizontal with the center of